Focusing on this, Brown seemed to get his feet moving a lot more vs. puck watching and trying (and failing) to stay in good defensive position. Less "think" and more "do", which seemed to benefit him.
Imo a main reason why Brown looked absolutely lost riding shotgun to McDavid or Drai was becasue the dude looked like he was trying to solve advanced quantum theory before deciding where to skate. The complete opposite of above.
Henrique also looked more comforable having some speed and agility on his wing to cover for his slow(er) boots. It'd be hilarious if those two could develop some chemistry, but I wouldn't hold my breath just yet.